/* ***** BEGIN LICENSE BLOCK *****

* Version: MPL 1.1/GPL 2.0/LGPL 2.1

*

* The contents of this file are subject to the Mozilla Public License Version

* 1.1 (the "License"); you may not use this file except in compliance with

* the License. You may obtain a copy of the License at

* http://www.mozilla.org/MPL/

*

* Software distributed under the License is distributed on an "AS IS" basis,

* WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License

* for the specific language governing rights and limitations under the

* License.

*

* The Original Code is Mozilla Password Manager.

*

* The Initial Developer of the Original Code is

* Brian Ryner.

* Portions created by the Initial Developer are Copyright (C) 2003

* the Initial Developer. All Rights Reserved.

*

* Contributor(s):

*  Brian Ryner <bryner@brianryner.com>

*

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* ***** END LICENSE BLOCK ***** */

// Helper to WebPasswordFormData to do the locating of username/password

// fields.

// This method based on Firefox2 code in

//   toolkit/components/passwordmgr/base/nsPasswordManager.cpp

#include "config.h"

#include "WebPasswordFormUtils.h"

#include "HTMLFormElement.h"

#include "HTMLInputElement.h"

#include "HTMLNames.h"

#include "KURL.h"

#include "DOMUtilitiesPrivate.h"

using namespace WebCore;

namespace WebKit {

// Maximum number of password fields we will observe before throwing our

// hands in the air and giving up with a given form.

static const size_t maxPasswords = 3;

void findPasswordFormFields(HTMLFormElement* form, PasswordFormFields* fields)

{

    ASSERT(form);

    ASSERT(fields);

    int firstPasswordIndex = 0;

    // First, find the password fields and activated submit button

    const Vector<HTMLFormControlElement*>& formElements = form->associatedElements();

    for (size_t i = 0; i < formElements.size(); i++) {

        HTMLFormControlElement* formElement = formElements[i];

        if (formElement->isActivatedSubmit())

            fields->submit = formElement;

        if (!formElement->hasLocalName(HTMLNames::inputTag))

            continue;

        HTMLInputElement* inputElement = toHTMLInputElement(formElement);

        if (!inputElement->isEnabledFormControl())

            continue;

        if ((fields->passwords.size() < maxPasswords)

            && (inputElement->inputType() == HTMLInputElement::PASSWORD)

            && (inputElement->autoComplete())) {

            if (fields->passwords.isEmpty())

                firstPasswordIndex = i;

            fields->passwords.append(inputElement);

        }

    }

    if (!fields->passwords.isEmpty()) {

        // Then, search backwards for the username field

        for (int i = firstPasswordIndex - 1; i >= 0; i--) {

            HTMLFormControlElement* formElement = formElements[i];

            if (!formElement->hasLocalName(HTMLNames::inputTag))

                continue;

            HTMLInputElement* inputElement = toHTMLInputElement(formElement);

            if (!inputElement->isEnabledFormControl())

                continue;

            if ((inputElement->inputType() == HTMLInputElement::TEXT)

                && (inputElement->autoComplete())) {

                fields->userName = inputElement;

                break;

            }

        }

    }

}

} // namespace WebKit